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Hmmm i doubt its aged. Its 3 months old.

I will swap them to see if the problem follows.

2018 zl1 with ported blower/snout , TSP cam, 2.3 upper, 5" intake, 103 TB, and 2" header back 3" exhaust, MM Catch Can, Low side pump, running 93.

I'm lost and running out of troubleshooting...